Published December 23, 2002 | Version v1
Journal article Metadata-only

Formation of nanocrystalline MgB2 under high pressure

Creators

  • 1. Institute of Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of (China)
  • 2. Photon Factory, Institute for Materials Structure Science, High Energy Accelerator Organization, Tsukuba 355-0801 (Japan)

Description

The microstructural features of MgB2 at ambient pressure and high pressure have been investigated by means of in situ synchrotron radiation x-ray diffraction and transmission electron microscopy (TEM). The x-ray diffraction measurements indicated that nanocrystalline MgB2 formed in the pressure range of 26.3-30.2 GPa. TEM investigations reveal complex structure domains with evident lattice distortion in the relevant samples. The superconductivity of nanocrystalline MgB2 was measured and compared with that of the starting sample of MgB2

Availability note (English)

Available online at http://stacks.iop.org/0953-8984/14/13905/c25016.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/0953-8984/14/13905/c25016.pdf; http://www.iop.org/;
PII
S0953-8984(02)54380-0;

Publishing Information

Journal Title
Journal of Physics. Condensed Matter
Journal Volume
14
Journal Issue
50
Journal Page Range
p. 13905-13909
ISSN
0953-8984
CODEN
JCOMEL

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
34031566
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
MAGNESIUM BORIDES; MICROSTRUCTURE; SUPERCONDUCTIVITY; SYNCHROTRON RADIATION; TRANSMISSION ELECTRON MICROSCOPY; VERY HIGH PRESSURE; X-RAY DIFFRACTION
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BORIDES; BORON COMPOUNDS; BREMSSTRAHLUNG; COHERENT SCATTERING; DIFFRACTION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; ELECTRON MICROSCOPY; MAGNESIUM COMPOUNDS; MICROSCOPY; PHYSICAL PROPERTIES; RADIATIONS; SCATTERING